The fundamental adaptation that defines hominins is __________.
A) tool use
B) complex social interaction
C) increased cranial capacity
D) upright posture

Question

Quizplus · Accepted Answer

The fundamental adaptation that defines hominins is upright posture, also known as bipedalism. This is characterized by the ability to walk on two legs, which freed up the hands for tool use and allowed for the development of increased cranial capacity and complex social interaction.

The Fundamental Adaptation That Defines Hominins Is __________